Flashcards in Skin, Soft Tissue, Bone, Joint Deck (48):
The two most common bacterial infectious agents of skin?
Staph aureus, strep pyogenes
The pathogen for staphylococcal scalded skin syndrome (SSSS) is ____
This disease involves separation of the cells of the outer epidermis from one another and underlying tissue. Reddening of the skin begins near the mouth and spreads throughout body. Large blisters followed by peeling of the outer epidermis in sheets occur
Staph scalded skin syndrome (SSSS)
SSSS primarily affects infants and children
5, IV antibiotics
The most superficial skin infection. MC caused by Staph
Is impetigo contagious?
____ is a group A Strep skin infection caused by Strep pyogenes. It is characterized by a bright red face secondary to dermal dilation of capillaries. Also contagious.
Erysipelas can lead to this kidney infection
Which is deeper: erysipelas or cellulitis?
Most common cause of cellulitis?
Which is larger: furuncle or carbuncle?
Folliculitis, furuncles and carbuncles are caused by ___ infection of hair follicles
The worst example of a skin infection is _____. It is flesh eating, starts as cellulitis and invades the fascia.
The two most common organisms causing necrotizing fasciitis?
Tx of necrotizing fasciitis is surgical debridement, meaning _____
Scrape the dead tissue
Mortality rate of necrotizing fasciitis without Tx is __%
Gram + anaerobic bacillus that causes Gas Gangrene. This pathogen lives and feeds on nutrients released by dead cells (secondary to gun shot wounds, trauma, fx)
T/F: Gas Gangrene is a medical emergency
Gas under the skin is called ____
The most common body tissue infected by Bacillus anthracis (Anthrax)?
Patients present with itching, followed by appearance of a raised lesion that turns into a black eschar in 7-10 days
Transmission of anthrax is through direct contact of ____ (form of bacteria) with breaks in the skin
Herpes infections are diagnosed by a ____ smear
____ infections are recurrent because the virus enters nerve cells and remains dormant until stress or other disease states come along
____ syndrome can be caused by giving children ASPIRIN who are with herpes zoster/varicella (chicken pox). Causes liver and brain damage
___ is a viral skin infection found in Africa that causes widespread bleeding, among other Sx. It can only be spread after symptoms begin
Ebola symptoms can appear from __-__ days after exposure
___ infections cause severe itching of the infected area. They are diagnosed with KOH prep
Dermatophytosis is commonly known as ____
The MC agents responsible for this fungal infection are Trichophyton and Microsporum
Trichopyton and microsporum (fungi) use ___ as a source of food
The most common cause of osteomyelitis is ____
___ arthritis causes red, swollen, tender, immobile joint. It is caused by Staph (40%), Strep (30%), or Gram - (20%)
The best test for this joint disease is Arthrocentesis (>50,000 WBC is a positive test)
The MCC of this wound infection is Pseudomonas aeruginosa (bacteria). Causes pus formation that is bluish-green
____ bites become infected by a gram - rod called Pasteurella multocida. An acute, painful cellulitis develops within 24 hours of bite or scratch
____ disease is caused by scratches or bites that introduce bacteria (Bartonella henselae) into skin. Causes enlarged LN for several months
Necrotic tissue/wound (gangrene) that causes tissue (limbs) to turn black is commonly caused by ____
Lyme disease is caused by a ____ called Borrelia burgdorferi carried by Ixodes (deer tick)
This disease results in a “target” shaped lesion called erythema chronicum migrans
Fluorescent antibody stains are a confirmatory test for _____, in which the vector is a tick. It causes blood vessel damage and spreads from extremities to trunk. Clinical presentation would be a rash on soles and palms
Common name for Rickettsia rickettsii?
Rocky Mountain Spotted Fever
____ is caused when a traveler returns from an endemic area. The pathogen is Plasmodium and the vector is the Anopheles mosquito
Ordinary measles are called ____ and German measles are called _____
In this disease, a rash appears at the hairline and spreads cephalocaudally over 3 days. Koplik spots appear on the buccal mucosa of the cheeks
In this disease a rash begins on the face and spreads cephalocaudally. Lymphadenopathy occurs and forchheimer spots appear on the soft palate
German measles (rubella)
Roseola infantum affects young children 6-36 months old. It is caused by human herpes virus __. After fever subsides, a rash begins on the neck and trunk and spreads to the face and extremities